Carbureter.



H. H. B ELL.

CARBURETER.

APPLICATION FILED MAR. 31. 19M. 1,147,672. I Patented July 20, 1915.

55 w m 26 w /2 0) E AZ is ,W a I 13 $38 i 2/ 4/ Z6 COLUMBIA PLANOGRAPHC0,, WASHINGTON. D. c

HUGH H. BELL, 0F BURR OAK, KANSAS.

oAitBUnErER.

Application fi ea ita' i 'si, 1914. seen no. 828,608.

To all whom it may concern:

Be it known-that I, HUGH H. BELL, a citizen of the United States,residing at Burr Oak, in the county of Jewell and State of Kansas, haveinvented certain new and useful Improvements in Carbureters, of whichthe following isa specification.

' My invention relates to carbureters adapted for use with internalcombustion engines and has for its object the provision of a novel formof device wherein a regulable amount of a fixed ratio of air andvaporized fuel are thoroughly intermixed and supplied to the manifoldofan engine, the supply of air being augmented by an auxiliary air inletin addition to the main inlet, the supply of air through the auxiliaryinlet and the supply of air and vapor through the main inlet beingquickly and easily adjustable to meet different requirements. of thesame or difierent engines.

Other objects and advantagesisuch as efficiency, durability, simplicityand thegerh eral improvement of the art will be brought out in thefollowing specification and illustrated in the accompanying drawings inwhich: l

Figure 1 is a vertical longitudinal section through the entire device,FigL-Qis a cross section through the fuel chamber, and Fig. 3 is adetail view. a r

Referring more particularly to the drawings, "the numeral 1 designatesthe fuel chamber to which the liquid fuel such as gasolene issuppliedthrougha pipe 2. At its upper end,the walls of the chamber 1 arecontracted-and terminate in a neck 3 into which is screwed a nozzle 4.

Surrounding the chamber 1 and spaced therefrom by arms 5 is an annularshell 6 which has its upper open end screwthreaded, asshown. Extendingdownwardly from the bottom of the chamber 1 is a bolt 7 which passesthrough a shell 8 the upper edge of which abuts against the lower edgeof the shell 6. The shell 8 is held in the proper relation tofthe shell6 by a nut 9 which clamps the shell 8 upon the bolt 7. An air inlet pipe10 communicates with the shell8.- v I Into the upper screwethreaded endof the shell 6is threaded a tube 11 which. is provi ded intermediateitsends with a plurality of openings lQwhich areinthe'same plane.

Specification of Letters Patent.

Patented July 210, 1915.

Between its lower end and the openings '12 the tube l-li-is-providedupon its internal- A deflecting periphery with vanes 13. v flange 14 isformed upon the exterior of the tube 11 above and extending downwardlyover the openings 12 for a purpose to be described-[At its upper end thetube ll is internally screw-threaded for the reception of a, knurledscrew 15'which' is provided withg'a screw-threaded opening for thereception of a second knurled screw 16 which is provided with a centralpassage 17. Lock nuts 18 and 19 are provided upon the screws 15 andl6re'spectively for clamping them in desired positions.

A rod 20 is disposed within the tube 11 having its upper end" passingthrough the passage 17 and having its lower end provided with a taperedplunger point 21 extending into the nozzle 4. At a point opposite theopenings 12 in the tube 11 the rod 2-0 is provided with a'disk 22fitting the inner periphery ofthe'tube 11f WVhen the disk 22 is evenwith'the openings 12 the plunger point 21 closesthe nozzle 4. The 1'0d17is normally heldin its lowest position by heavyand'light coilsprings 23and 24: which abut against the top of the disk- 22 and the lower ends ofthe screws 15 and-l6,

respectively; c

A Sl16ll25 surrounds the tube "11' and forms a mixing, chamber; Theshell 25 is provided witlr'flanges 26 whereby itmay b'e bolted toth'e-1manifold of an engine; The shell 25 is also provided with anopening "27 in its" lower wall which communicates with a pipe 28 and isfurther provided with a sleeve 29' formed upon the lower side of its.top wall. i

The auxiliary-'airinlet and its adjusting devices are disposed withinthe sleeve 29 the upper portion of which is in 'alinement with theopening 27.

This auxiliary valve comprises a disk30 disposed over. the opening 27and provided with an upwardly extending :s'tem 311 A screw 32 isthreaded into the sleeve 29 and is providedwith a screw threaded openingforv the receptionofa second screw 33 which is in turn providedwith acentral passage 84 which receives "and'forms a guide for the stem 31';Lock nutsvv 35 and 36 are disposed upon the screwsr32 and-33respectively for clamping them indesired positions; The disk" 30 isnormally pressed downwardly by heavy and light coil springs 37 and 38which abut against the disk 30 and the screws 32 and 33, respectively.

The operation of the device is as follows: As the pistons in the enginecylinders move, the disk 22 will rise, elevating the plunger point 21and allow the liquid fuel or gasolene to pass through the nozzle 4 intothe tube 11. At the same time air will pass through the pipe 10 aroundthe fuel cham ber 1 and thence into the tube 11 where it will mix withthe liquid fuel or gasolene, and the mixture so formed will then passupwardly through the tube 11 and out through the openings 12 after whichit will be still more thoroughly mixed by the baffling action of thedeflecting flange 14-, and as it circulates in the mixing chamber withinthe shell it will be still further mixed or intermingled and then passby the controlling I throttle 39 and into the manifold of the engine.

By adjusting the screws 15 and 16 the springs 23 and 24: can betensioned to adapt the device for low or high speed. If the speed of theengine is accelerated and a engine or other heating means in order thatthe air supplied to the carbureter be very hot. By using air heated to ahigh temperature the fuel in the chamber 1 will be kept hot and willtherefore vaporize rapidly. This makes the use of heavier and lessactive fuels than gasolene a simple and assured matter. Anotheradvantage of this device is that the back pressure and spring tension onthe disk 22 is such that the objectionable fluttering of the needlevalve is eliminated.

Having thus described my invention what I claim is:

1. A carbureter comprising a fuel chamber, a shell surrounding said fuelchamber and provided with an air inlet, a tubular member connected withsaid shell, a second shell surrounding said tubular member adjacent itsupper end, said tubular member being provided with openingscommunicating with said second named shell, a deflecting flange on saidtubular member adjacent said openings, said second named shell beingadapted to communicate with the manifold of an engine, a nozzle on saidfuel chamber discharging into said tubular member, a rod disposed withinsaid tubular member and having its lower end adapted to close saidnozzle, a piston on said rod in alinement of an engine, a nozzle on saidfuel chamber 1 discharging into said tubular member, a rod disposedwithin said tubular member and having its lower end adapted to closesaid nozzle, a piston on said rod in alinement with said openings, andadjustable spring tension pressing downwardly on said piston, saidtension comprising relatively light and heavy springs disposed onewithin the other and abutting against said piston and against adjustingscrews extending into said second shell.

3. A carbureter comprising a fuel chamber, a shell surrounding said fuelchamber and provided with an air inlet, a tubular member connected withsaid shell, a second shell surrounding said tubular member adjacent itsupper end, said tubular member being provided with openingscommunicating with said second named shell, a deflecting flange on saidtubular member adjacent said openings, said second named shell beingadapted to communicate with the manifold of an engine, a nozzle on saidfuel chamber discharging into said tubular member, a rod disposed withinsaid tubular member and having its lower end adapted to close saidnozzle, a piston on said rod in alinement with said openings, a screwextending into said second named shell, a second screw extending throughan opening in said first named screw andprovided with a central openingfor the reception of said rod, and heavy and light coil springs abuttingagainst said piston and against said first and second named screws,respectively.

4. A carbureter comprising a fuel chamber, a shell surrounding said fuelchamber and provided with an air inlet, a tubular member connected withsaid shell, a second shell surrounding said tubular member adjacent itsupper end, said tubular member being provided with openingscommunicating with said second named shell, a deflecting flange on saidtubular member adjacent said openings, said second named shell beingadapted to communicate with the manifold of an engine, a nozzle on saidfuel chamber discharging into said tubular member, a rod disposed withinsaid tubular member and having its lower end adapted to close saidnozzle, a piston on said rod in alinement with said openings, andadjustable spring tension pressing downwardly on said piston, and anauxiliary air inlet comprising a disk adapted to seat over an opening insaid second named shell, and adjustable spring tension on said disk.

5. A carbureter comprising a fuel chamber, a shell surrounding said fuelchamber and provided with an air inlet, a tubular member connected withsaid shell, a second shell surrounding said tubular member adjacent itsupper end, said tubular member being provided with openingscommunicating with said second named shell, a deflecting flange on saidtubular member adjacent said openings, said second named shell beingadapted to communicate with the manifold of an engine, a nozzle on saidfuel chamber discharging into said tubular member, a rod disposed withinsaid tubular member and having its lower end adapted to close saidnozzle, a piston on said rod in alinement with said openings, a screwextending into said second named shell, a second screw extending throughan opening in said first named screw and provided with a central openingfor the reception of said rod, and heavy and light coil springs abuttingagainst said piston and against said first and second named screws,respectively, said second named shell being provided with an air inletopening, a disk valve seated over said opening, a screw extending intosaid second named shell, a second screw extending through said screw,and relatively heavy and light coil springs abutting against said diskand said last named screws.

6. A carbureter comprising a fuel chamber, a shell surrounding said fuelchamber and provided with an air inlet, a tubular member connected withsaid shell, a second shell surrounding said tubular member adjacent itsupper end, said tubular member being provided with openingscommunicating with said second named shell, a deflecting flange on saidtubular member adjacent said openings, said second named shell beingadapted to communicate with the manifold of an engine, a nozzle on saidfuel chamber discharging into said tubular men1ber,and means fornormally closing said nozzle.

7. A carbureter comprising a fuel chain ber, a shell surrounding saidfuel chamber and provided with an air inlet, a tubular member connectedwith said shell, a second shell surrounding said tubular member adjacentits upper end, said tubular member being provided with openingscommunicating with said second named shell, a deflecting flange on saidtubular member adjacent said openings, said second named shell beingadapted to communicate with the manifold of an engine, a nozzle on saidfuel chamber discharging into said tubular member, a rod disposed withinsaid tubular member and having its lower end adapted to close saidnozzle, a piston on said rod in alinement with said openings, and meansfor producing a downward pressure on said piston to prevent fluttering.

In testimony whereof I hereto affix my signature in the presence of twowitnesses.

HUGH H. BELL.

Witnesses:

J. F. BELL, E. A. Roms.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

